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Gigajoules to Kilowatt-hours Converter

Convert gigajoules (GJ) to kilowatt-hours (kWh), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
277.777777778 kWh
joules (watt-seconds)
1,000,000,000 J
kilojoules
1,000,000 kJ
megajoules
1,000 MJ
calories (thermochemical)
239,005,736.138 cal
kilocalories (food Calories)
239,005.736138 kcal
megacalories
239.005736138 Mcal
watt-hours
277,777.777778 Wh
megawatt-hours
0.277777777778 MWh
British thermal units (IT)
947,817.120313 Btu
million Btu
0.947817120313 MMBtu
therms (100,000 Btu)
9.47817120313 thm
quads (10¹⁵ Btu)
9.47817120313 × 10⁻¹⁰ quad
electronvolts
6.24150907446 × 10²⁷ eV
kiloelectronvolts
6.24150907446 × 10²⁴ keV
megaelectronvolts
6.24150907446 × 10²¹ MeV

1 GJ = 277.777777778 kWh

Show the working
  1. 1 GJ = 277.777777778 kWh
  2. 1 × 277.777777778 = 277.777777778 kWh

How to convert gigajoules to kilowatt-hours

1 GJ = 277.777777778 kWh, so multiply by 277.777777778 to go from gigajoules to kilowatt-hours. Going the other way, 1 kWh = 0.0036 GJ.

kWh = GJ × 277.777777778
GJ = kWh × 0.0036

Worked example:

1 GJ = 277.777777778 kWh
5 × 277.777777778 = 1388.88888889 kWh

Gigajoules to kilowatt-hours table

GigajoulesKilowatt-hours
1 GJ277.777777778 kWh
2 GJ555.555555556 kWh
3 GJ833.333333333 kWh
4 GJ1,111.11111111 kWh
5 GJ1,388.88888889 kWh
6 GJ1,666.66666667 kWh
7 GJ1,944.44444444 kWh
8 GJ2,222.22222222 kWh
9 GJ2,500 kWh
10 GJ2,777.77777778 kWh
15 GJ4,166.66666667 kWh
20 GJ5,555.55555556 kWh
25 GJ6,944.44444444 kWh
30 GJ8,333.33333333 kWh
40 GJ11,111.1111111 kWh
50 GJ13,888.8888889 kWh
75 GJ20,833.3333333 kWh
100 GJ27,777.7777778 kWh
250 GJ69,444.4444444 kWh
500 GJ138,888.888889 kWh
1000 GJ277,777.777778 kWh

About the units

Kilowatt-hours (kWh)
Kilowatt-hours, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).

Formula version 0.1.0Reviewed